Italy

About us
Deerns is an international engineering consultancy founded in the Netherlands, specialising in building services, energy, sustainability, and digital design for complex real-estate and infrastructure projects. With roots dating back to 1928, Deerns supports clients across commercial, healthcare, data centres, airports, and mixed-use developments. The company is known for integrating energy efficiency, decarbonisation strategies, and lifecycle thinking into high-performance buildings. Operating globally from a strong European base, Deerns combines technical depth with a systems perspective to help future-proof assets and support the transition toward climate-neutral built environments.